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What is the formula of the pole arc of the universal commutator motor?

Posted: Thu Jul 14, 2022 10:25 am
by answerhappygod
a) pole arc = ratio of armature axial length to armature diameter * pole pitch
b) pole arc = ratio of armature axial length to armature diameter + pole pitch
c) pole arc = ratio of armature axial length to armature diameter – pole pitch
d) pole arc = ratio of armature axial length to armature diameter / pole pitch